Hi All. Need help finding a smoker that can do it all

You will need an electric smoker with an aftermarket temperature controller....   The AMNPS or AMNTS are very good smoke generators...

https://www.amazenproducts.com/category_s/62.htm

http://www.amazenproducts.com/category_s/12.htm

Todd's pellets are comprised of a single flavor wood, except where noted...  Unlike other manufacturers that use a base wood something like Alder or Oak, depending on their locale,...  Then add a portion of flavor wood...

The Sausage Maker has one smoker that does operate at a fairly low temp....   nepas has one...  ask him about it.....

The TSM 30... https://www.sausagemaker.com/30-lb-Digital-Country-Style-Smoker-p/19-1012.htm

http://www.meatprocessingproducts.com/40900.html   (50-200 degrees)